Typewriting machine



Patented Dec. 9, 1941 UNITED STATES PATENT ()FFLC'E TYPEWRI'TING Otto E. Gathmann; Syracuse Y., assignqg to' L. C. Smith. &- Corona Typewriters, I-nc.,

Syracuse, N. Y., a corporation of N ew York Application Jill-y 19; 194W. fier-iai-Noastag-ass 16 Claims.

The invention relates to improvements in type writing machines; and more particularly to the tabulati-ng" mechanismof such machines.

The principal object of the invention is to'providein" a typewriting or like machine an improved tabulating' mechanism of thekey-set type Whichis of simple, inexpensive and sturdy'constnuction.

Another object is to provide, in ak'eyset tabul'ating mechanism having a settable and unsettable column stop for each letter space position of the platen carriage of the machine, an improved construction and assembly of the stop carrying bar andistops:

A further" object 01? the invention is to improve key set tabulating mechanism such asthat ciisclosed in S Patent No: 2,09950-1L, is'sued November 16; 19'37,tociar1 Gabrielson et al., and intheco-pending application'of Laurence 3. Hill, Serial Nb. 342,863, June 28; 1940.

To the foregoing andother ends which Wilt hereinafter appear, the inventionconsists of the improved devices, features of construction, and aizrangementsand combinations of parts and; ale-- vices hereinaften particularly described and pan ticuiarly pointed out in: the appended claims.

In: the accompanying drawing illustrating the preferred embodiment of the invention;

Fig. 1- is a fragmentary vertical lon itudinal sectional View of the'improvedt machine: taken onthe line t of Fig. 2

Figs 2 is a fragmentary transverse sectional view of the machine taken approximately an the line 2+2 of Fig. 1, certain" parts being. brokenaway for'c'l'arity of illustration of the stop setting and i'msetting means;

Fig. 3 is a fragmentary top planv'iew partly in: section approximately on the'lin'e 3 3 of Fig, 1

Figs. 4' and 5 are d'etailsectional views similar to Fig. 1 illustrating, respectively, the setting of aselected ccluirn'nstop individually in operativeposition, and the'unsetting of a selected set column stop individually into inoperative: or cleared position; 1

Fig. 6 is a detail view showing how any-"column sembly, Fig. 1'0- 2; top View thereonand: Fig; 1 1

a detail perspective. View sl iowin 'g one of the 515" groups of three coltlm -n stops en aged in eaicfi sltit oi the" stop tar in the modified; construction.

The invention has been shown embodied in an C. Smith typewriting machine'- having a talent Eating" mechanism constructed-- as shown in the prior patent and more particularly in the co pending application above referred t'c', except as said mechanism is modified by the present irh p'fov'ements. O nly somucliof the: known machine as is necessary for a clear understanding of the present invention has been shown and; will be described.

The platen carti age w of the machine has the astral roller plate f l j oui nalled therein is n'ie'wi-h-teciv as: dsiiat or the memir'emeworit I2 ot the mach-ineto ttavel lizack ar id iorth tfiansvetsely oi: the iiia'cl iirie, and" is- 1ettenspaceftom= right to left control: of the asuafl earniage eseapemerit; mechanism (notshownox. The carriage m is releasabie mom control of the carrlage' escape merit; mechanism ty the usual escapement re leasing or carriage-releasing? mechanism: (not shov'tfi for tabulatifig jump or? rim-hing: move: men-t ot the carriage from. right to left the known: manner; Fixedly he'ld to the" canriage aidiacent opposite ends of the carriage are two brackets: 13" which rigidly" support: the opposite ends-eta column: stop carrying bar M which-ex tends hori'zontaliy' transversely of? the machine.

to the adjacent lora'ck'et t3 by a" screw i5. The-column stop carrying ba'r" Hisof o'lolc'ngi cross section and: isheld: tothe brackets l3 with' its two Wider faces disposed in superposed hcri zontal' planes. This bar according to the present invention is slotted. inward: from top to bottom thereof along both its front and rear" edges at greater thanletter-spac'e intervals to provide: a row of column stop guidingand: spacing slcts Hi along the: frontedge' of the bar and" a similarly spaced row of column stop guiding and spacing slots l'l= of like number along. the rear edge of the bar; Each slot- It is directly opposite a different one'of theslots IT andthe slots oi each-a row are simiIarl'y spaced: apart greater than'let ter's'pace intervalswith the same spacing: for the; slots of bothrows and with each slot it directly opposedtoa slot Il'.

Sett'abie: c'olumristops; l8 ofnovel construction one for each letter-space position of the carriage, are. roc'ka'b'l'y mounted. on: the stop bar M; certain 01: the stops [-8 being. omitted from the drawing for clarity of illustration. These never stops have: a novel: mounting means in-' evading: the stop carrying bar M and coast with The stops it are adapted to hold the pivot wire I9 in the groove 26) as hereinafter explained, and each stop I8 is of substantially .cshape in side elevation and consists of a singlepiece of sheet metal. The stops are so formed as to be readily stamped in quantity by inexpensive dies from a thin sheet of metal, and are formed of thin sheet metal which is slightly resilient or springy, and each stop is so formed as to be resilientlyexpansible and contractible edgewise of the stop. The stops I8 are adapted as hereinafter described to hold themselves and the pivot wire I9 assembled with the stop-carrying means for positively limited pivotal setting and unsetting movements of the stops about the pivot wire I9 and to prevent accidental disconnection ofanystop I8 and of the ivot wire I9 from the stop bar I4, while permitting ready.

assembly, of the wire and stops with the bar and disassembly of the stops and wire from the bar, andpermitting individual detachment and attachment of any stop I3 from, and to the wire and the remainder of the stop-carrying means.

Each stop 58 is formed adjacent one of its ends with a pivot bearing in the form of a slot I8 which is open at one end. The slot lfi is wide'enough for passage of wire i9 through the open end of the slot to the closed end of the slot, and the open end of said slot I8? faces. ap-

proximatelytoward the opposite or free end of the G-shaped. stop I8. Each stop is formed at its outer edge with two integral projections or I lugs 22 and 23 spaced apart along the stop and extending outwardly substantially radially to the pivotal axis of thestop. At itsinner edge each stop I8 is formed with two integral projections or lugs 24 and 25 extending inwardly substantially.

toward the pivotal axis of the stop, projection 25 being formed at the free end of the stop. Between projections Hand 25 and close to projection 25, each stop Iil'is formed atiits inner edge with a stop-latching projection or camhump 28 which projects'inwardly a lesser dis-' tance than projections 24 andZii.

Aflat metal latching and retaining bar. Ifiii' for all of the column stops l8 isheldiflatwiseagainst the under face of the stop-carrying barv I4 b-y clamping screws IIlI threadedintothe bar I4. Bar, Iiiil is preferably provided .withslots lflLextending transversely of the bar, and. the shanks of thescrews IQI extend through these slots to permit bar Itii tobeclamped to bar Mindifferent fore and aft adjusted positions of the bar ltd with the rear edge of bar I419 protruding rearward slightly beyond the; root ends or foremost endsof the slots I'I,:b11t not to the rear or open ends ofslots II,- as shown.

The rear'e'dge of .bar IE0. is. preferably [rounded as shown moreclearly in Fig. 6. Bar Iiifl extends longitudinally of bar It past all stops of the set of. column stops it and the cam hump 28 "ofg-eachstop. I8 is adapted to snap above and belowfsaid edgeto releasably lock the stop in unset and set positions respectively. Projection 25 of each stop I8 is adapted to engage under said bar I69 to arrest unsetting movement of the stop.

All set stops It are simultaneously unsettable by a universal unsetting device comprising a rock shaft 3| and a fin 32 on said shaft. Shaft 3i is of circular cross-section having reduced coaxial bearing end portions 3F to the outer end of one of which is removably fixed at 38 a forwardly extending operating rock arm 36 formed with a key or finger-piece 3'1, said arm and key being located at the right-hand side of the carriage outwardly beyond the adjacent bracket I3. Between its reduced bearing end portions ti the rock shaft 3I is formed with the integral fiat fin 32 which projects rearwardly from the shaft and extends past all of the stops I 3 and normally lies flatwise against the top face of bar I4. Fin 32 is substantially tangential to the periphery of the main part of the rock shaft 3i, andsaid 'shaftand its fin overlies the top face of the unslotted medial portion of the bar I4. a

To detachably and rockably hold the rock shaft 34 to thebar I4, a pair of sheet metal bearing brackets 03 are detachably held to the top face of bar I5 by screws IM. Each bracket has a pair of integral upstanding forwardly extending hook-shaped arms 'Iil5 hooked over the adjacent reduced bearing end portion 3| of shaft SI to hold the main portion of said shaft rockably to and against the top face of bar I4 with fin 32 underlying the projections 24 of the several column stops, which projectionsare engageable with the top face of the fin to positively arrest setting movement of stops I8. Theinner-- most arms I535 of the brackets I93 abut the ends.

of the main portion of shaft3I to hold the shaft against axial movement.

To restore and normallyyieldingly hold the universal stop unsetter 3I32 in the normal position thereof above described .and shown in the drawing, there-is provided a self-holding but readily detachable return spring ,Iilfi'which, like the column stops, is stamped of substantially C-shape from resilient sheet metal for edgewise resilient expansion and contraction of the. spring transversely of the shaft 3| and bar I4.. This C-shaped spring H36 has anv open-ended pivot slot Iilfi in, one end thereof similar to the slot lii in eachof the column stops I8 for detachable pivotal engagement of the spring I 06 with the stop pivot wire I9. The stop bar I4 is provided with a slot IS (Fig. '7) similar to slots I6 for receiving and guiding the pivoted slotted end of spring its. The spring I 66 is arched over the shaft 3! and its free end is engaged with and yieldingly presses constantly against shaft 3I' and fin 32 above the fin substantially at the juncture of the .finwith said shaft.

' The spacing of the projections 24, 25 and 28 of each stop I8 is such, as shown, that upon rocking of any stop I8' from its unset position of Figs. 1, 2, 3 and 5 to'itsset position of Fig; i, the latching projection 28v will be. forced down past the rear'edge of bar I08 and" engage under the to its, unset position, the cam hump 28will be forced upward past the rear edge of bar it; and

engage over the latterv as projection 25. engages" the under, face ofpthe bar Hill adjacent the'rear spear/r edge of" bar Hill to positively arrest unsettin g movement of the stop l8.

It will also be obvious. that, by pressing down on the finger-piece 31, the fin 32 of the universal unsetter 3l-3Z may be rocked upward and for- Ward to unset all stops [8 which may be set at the time of depression of the finger-piece, said in this operation thrusting against. the projection; 2"? of any set stop to move the stop to unset position. The universal unsetter 3 l3 2 is similar to that disclosed in the co-pendin=g application above referred to.

Each stop H? is arched over the bar [4 and the' universal unsetter 3l--3 2, and projections 22 and 23 of each stopextend generally rearwardly from the downwardly extending rear portion of each 6-shape'd stop- [8 for coaction with an individual stop setter and unsetter 4l'4 3- by mean-s of which stops [8 may be individual-ly'set and unset selectively; This individual stop-setting and un-- setting means is only partly shown and described herein as it is the same as that disclosed in the prior: patent above referred to.

Said last-mentioned means comprises the individual stop-setter and unsetter 41-43 rockahle by Rey-applied force either to the position shown in Fig. 4 or tothe position shown in Fig. from thenormal idle intermediate position of said setter and unsetter shown in Figs. 1, 2 and 3, and" automatically returned to said last-mentioned position from either of the first two mentioned positions upon release of the key-applied force. This setter and unsetter 4'l--4'3- comprises a yoke 64' having its two legs pivoted at their rear ends on a fixed pin 42', one leg of said yoke being formed with a stop-setting and unset'ting. finger 43. Pin 42 extends horizontally transversely of the machine and is fixed in the main frame !-2' of the=machi-neabove andbehind the stop her M.

The" key-controlled means for so shifting the stop setter and unsetter 4I'-43 from, and restoring it to, idle position includes a vertically reciprocable link 45 connected at 44' to the righthand legofyoke 41, and a vertically reciprocable link 53 connected to link 45 by a cross-pin or cross-rod 54 rigid with both links. Shifting of the rigid link device 45-53--54 upward by key applied force from a normal position thereof to which it is automatically restored upon release of'key' forcerocks the stop setter and unsetter fromnormal' position to. that of Fig. 5 to unset a stores? the stop setter and unsetter 4l43 to normal: position.

The finger 43 of the device ll- 13; which swings the stops individually about their pivotal axis: to set or unset a single selected stop at a time,.extendsforwardly from the yoke 4| and is located substantially in the medial verticallongitudinal. plane of the machine. The thickness of. finger 43- transversely of the machine is substantially equal to that of each column stop; it

and ineachletter-space position oftravel of the carriagea: different one of: the stops l3 islocated in. the same vertical fore-and-aft. plane; through Shifting or"- the link device the machine in which the finger 4:3 lies. The finger 43- normally" projects in between the pro: jectio-ns- 2'2 and 23 of any stop F8 aligned therewitha The spacing apart of the two projectionsand 2"? or each stop [8 is suchthat during travel or the carriage; while" the stop setter and unsetter M-Jt in idle or neutral position, the projections 2'? of all stops [8 will pass above the finger 4 3 and the projections 23' of allstop it will passbelow finger 4? whether the stops be-s'et or unset. Thespacing apart of the projections- 22 and 250i eachstop $82 is also such that, when said stop is registered with finger 43 down-ward swinging er the finger from idle position will set that stop-by thrust of the finger onprojection- 23' and upward swinging of the finger from idlegiosi tiou= will unset the stop by thrust of the finger against projection Z2, but return movementof the finger to idle position will notshitt thestop:

Theprojectionsof the column stops t8- also serve as. abutment elements of" said stopsfor co action: with a suitable settabl'e counterstop 86 on the .machine frame tabul-ating operations. The counterstop' 8-6 shown, and the means for setting it, in the improved machine, correspond to those disclosed the prior patent above men tionedz This counterstop 8-6 is located sub-starrtially midway between the sides of the machine and is guided at-itst upper end adjacent the stop bar Win a. fore-and-aft extending slot ill! in. a part of the main frame. l2. Suitable key-controlled means, asset out insaid. prior patent, are provided: for. releasing the carriage for a tabulating jump from. right. to. left and. for shifting the-counterstopflfi. from anormal idle position of said. stop shown in. Figsa. 1' and 2' to an active position of said stop 86: shown in. Fig. 4.

When counterstop: 86. on the. main frame of the machine: is in idle position, stops I8 will freely pass it Whether-stops l8 are set or unset- When: counterstop 816* is: in active position all. unset on'eszof: the stops. l'8 will pass it but no' set stop: i3. will pass it. The projections 23 of set stops f8: will collide sidewise with the active.

or set counterstop 8G in successive tabulating. jumps or: runs. of the carriage.

In. key set tabulating. mechanism for typewriting; machines adifferent column stop is provided! fort'each letter space position of. the platen: carriage and it is the common practice to have the set: of column stops carried by a stop bar having a pair of opposed slots for each column: stop. It hasbeen found that the impact force against any one of these column stops in arresting a tabulating jump of the carriage frequently results in: bending or breaking of teeth of the stop bar, this being particularly true in machines having: fonts of types. of they smaller type sizes, and: very short letter space movements. This diihcu'lt'y isovercome by the present invention.

Two'illustrative embodiments of the invention.

are shown in the drawing, namely, that shown in Figs. 1 tea and that shown in Figs. 9 to 11..

In. each construction there are as many column stops [8 as there: are letter. space positions of the carriage H], i. e., if the carriage (for example) has a length of travel of 90 letter spaces; there are 9i) of the column stops I8. In the prior key set tabulating mechanisms referred to.

very close-spacingof theslots I26 andia corre-l spondingly close spacing of the slots I! with resultant -thin and weak -teeth or projections or, the barl4 between the slots of each row of slots I6 andeach row of slots, ii in said bar I4. The present invention provides a coarser slotted or toothed stop bar with strong teeth while maintaining the important requirement of one column stop for each letter space and the ability to set any selected one or plurality of said column stops for coaction with the counterstop to stop the carriage in tabulating at any selected series of column stop positions (orletter space positions) of the carriage.

While according to the invention there are as many of the column stops l8 as there areletter space positions of the carriage, the stop bar lfl'has a lesser number of the pairs of opposed slots Iii-l1 than there are stops I8 and there is engaged in each pair of opposed slots 16-41 a plurality of the stops l8, yet each stop l8is adapted when set to coact with the usual counterstop (such as 86) to arrest the carriage in a different one of its letter space positions, and the carriage can be arrested in tabulating at any letterfspace position or series .of said positions.

In the embodiment of the invention shown .in

" Figs. 1 to 8 there are just half as many pairs of opposed slots lB-l'! as there are column stops [8 or possible letter space positions of the carriage, and a group of two of the stops I8 is engaged in each pair of opposed slots i6-l|. By this arrangement the spacing between the slots of the row of slots i6, and. the spacing between the slots of the row of slots I1. is substantially doubled thus making the teeth or projections of the stop bar between the slots substantially twice as strong as in prior constructions such as above described.

In the modified embodiment of the invention shown in Figs. 9 toll, the number of slots I6 and the number of slots I! (or the number of pairs of opposed slots l6l1) is only one-third of the number of column stops I8 (01' possible letter space positions of the carriage), and there is engaged in each pair of opposed slots i6-IT a group of three of the stops l8. By this modified arrangement the spacing between .the slots of each row of slots lfi and the slots of each row of slots I1 .is' substantially tripled thus substantially tripling the thickness and strength of the. teeth or projections on the'stop bar. M which define the slots of said rows of slots. l

In order that the stops l8 may be set, in the embodiment shown in Figs. 1 to 8, for stopping the carriage at any selected letter space positions of the carriage, the projections 22 and 23 of the left hand stop I8 of each pair or group of stops I8 engaged in each single pair of opposed slots I6-l'! are offset laterally or sidewise to. the left of the main body portion of the stop substantially one-half a letter space distanceof travel of the carriage, and the projections 22 and23of the right hand stop 18 of each said pair or group of stops are offset laterally orside-. wise to the right of the main body portioniof. the stop substantially one-half a letter space distance of travel of the carriage.

'the projections 23 of the entire s'etlof 'stops i'8.- I?! are each made just The slots l6 and. slots wide enough to loosely receive agroup' of two 0f the thin stops i8with the main bodypdrti'ons of said two stops abutting face to face and pivoted on wire l9. 7 I 7 In order that the stops 3 may be set, in the embodiment of the invention shown in Figs. 9 to 11, for stopping the carriage at any selected letter space positions of the carriage, the projections 22 and 23 of the-central stop I 8 of each group of three stops lie in the same plane as the main body portion of the stop, while the projection 22 and 23 of the left hand stop of each group are offset to the left substantially one letterspace distance and those of the right hand stop are offset to the right substantially one letter-space distance, all the projections 22 of all stops of the entire set of stops I8 in the modified construction being spaced apart one letter space and the same being true of all the projections23 of all stops of said set. In Figs. 9 to 11 each slot, l6 and H is made just wide enough to receive loosely the body portions of a group of three facewisely,

abutted thin stops l8 pivoted on wire i9.

Inboth forms of the invention shown slots it are uniformly spaced and; slots precisely the same spacing and width as slots It, a slot I! being directly opposed to each slot It, For a carriage with a possible travel of letter spaces, for example, there would be 90 stops IS in each embodiment of the invention but only 45 slots I6 and 45 slots I! in the embodiment of Figs. 1 to 8, and only 30 slots [6 and 30 slots IT in the embodiment shownin Figs. 9 to 11.

In both forms of the invention each of thosethe embodiment shown in Figs. 9 toll said spacing is substantially equal to three letter spaces.

What I claim is: 1 1. In a tabulating mechanism for controlling tabulating movements of the platen carriage of a typewriter or like-machine to arrest the carriage at selected letter space positions of the carriage, the combination of a set of column stops, one for each letter space positionof the carriage, means supporting the column stops for selective setting and unsetting movements of the column stops, counter stop means for coactionwith set ones only of the column stops, said column stop supporting means supporting the column stops in a series of spaced groups each consisting of a like number of column stops abutted face to face, and each column stop having an abutment portion which is positioned, by

setting the stop, for coaction therewith of the.- counterstop means, thesaid abutment portions of the set of column stops being spaced a letter' space distance apart along the path of travel of the carriage.

2; In a tabulating mechanism, the combination of a set of tabulating stops, and stop supporting means having a row ofslots in which said stops are shiftable transversely of said row of slots toset and unset positions, each slot of said row havinga plurality of said stops shiftably engaged therein, each stop of said set of stops havingan abutment portion for coaction therewith of r counterstop means in the set position or the stop, the abutment' portions of the set of stops being I I are given uniiormlyspaced apart longitudinally of the :row' ofslots.

3.. a, tabnlating mechanism. .for typewriting or like machines having a traveling platen carriage, the. combination of a transversely slotted column stop bar, and a. set of column stops pivotally held to said bar in groups 'for setting and unsetting pivotal movements of each stop independently of the others transversely of the bar with each group .of stops :engaged in a different slot of said bar, each column stop having a. contact portion for coaction with a counterstop for arresting the carriage, the contact portions :of all stops of the set being uniformly spaced apart longitudinally of the column stop bar.

4. A key-set tabulating mechanism for controlling tabulating movement of the platen carriage of a typevnziting machine, including a series of key .se'tta'ble .and'unsettable column stops, individually se'ttable. and unsettable and equal in number to the number or letter space positions of the platen carriage of the :machine, characterized thatzthe istopsyare confined in groups between teeth of a column stop bar which are spacedlapa-rt. and are thick longitudinally of the path :oif travel of the carriage and are less in number than the number .of stops, the stops of each group having body portions abutting face to face and being edgewisely thin longitudinally of the path of travel sofa the .carriage, :eaoh stop of the entire series of stops having .an abutment portion for coacting with a suitable counterstop, the spacing apart :of the, abutment portions of the series of stops longitudinally of the path of travel of the carriage corresponding to the extent of .a letter .space movement of the carriage.

5. A key-set tabulating mechanism for typewriting machines as claimed in claim 4, wherein the column stops are pivotally mounted for edgewise rocking thereof individually transversely of the column stop bar for selective setting and unsetting of the stops.

6. A key-set tabulating mechanism for typewriting machines as claimed in claim 4, wherein the column stops are pivotally mounted for edgewise rocking thereof individually transversely of the column stop bar and of the path of travel of the carriage and for individual detachment and attachment of the stops.

'7. In a tabulating mechanism for typewriting or like machines, the combination of a stop carrying bar having two parallel rows of transverse slots at opposite faces thereof, and a series of column stops each straddling said bar, the stops arranged in groups with each stop of the same group engaged in one slot of each of said two rows of slots and in the same slot of each row, each stop having an abutment portion for coaction with a suitable counterstop, the spacing apart of the abutment portions of the entire series of stops being uniform.

8. In a tabulating mechanism for typewriting or like machines, the combination of a set of column stops having fiat body portions, and column stop supporting means including a column stop bar having a longitudinal row of transversely extending slots uniformly spaced along said bar and each equal in width to the thickness of two of said stops, said set of stops being mounted on said supporting means in groups of two facewisely abutted stops with each group of stops engaged in a different one of said uniformly spaced slots in said bar, the stops each having a. laterallyloffset, abutment portion the several abutment portions/of the set (if-Stops being uniformly spaced apart longitudinally of the bar, the abutment: portions of the. twov stops .of each of saidgroups of stops :being laterally off,- set in opposite directions from the main body portions of the. stops longitudinally of the bar.

9,. In a tabulating mechanism for typewriting or like machines, the combination of :a :set of column stops. having flat body portions, and col-- umn stop supporting meansincluding acolumn stop bar having extending longitudinally thereof a row of transversely extending slots uniformly spaced apart :along said bar and equal innumber to one-third of the number, of stops'in said set, of stops, each slot equalling in Width long-itudinally of the bar th thickness of a group of three of. said stops, said set of stops being :mounted on said supporting means in groups ofthree facewisely abutted stops with each of said groups of stops engaged in a different one -of.said:slotsin said bar, each :stop having an abutment portion for coaction with a suitable. counterstop, the abutment portions of the set of stops bein uniformly spaced apart longitudinally of said bar, the. abutment portion of the central :stop of each group lying in the plane of the :body portion of the stop, and the abutment portions. of the-two outer stops of each group being oppositely oil,- set laterally of said stops.

10. .In a key-set tabulating mechanism for controlling movements of the platen carriage. of typee writing or like machines having a set of column. stops and a stop setting and unsetting :means i coactive with any selected one of said column stops to individually set or :unset the same, the combination with said-set of column stops, of means supporting said set of column stops for setting and unsetting movements of each stop in-- dependently of the others, said supporting means including a bar extending longitudinally of the set of stops and having extending therealong a row of uniformly spaced slots each of which extends transversely of the bar, the number of said stops being a given multiple of the number of said slots, each slot being wide enough longitudinally of the bar to receive a number of said stops corresponding to said given multiple of the number of slots, each stop having two projections engageable by said setting and unsetting means to respectively set and unset the stop, one of said projections being adapted to serve also as an abutment for coaction with a counterstop to arrest tabulati ng movements of the carriage of the machine, the spacing apart of the said stop projections longitudinally of the bar being uniform throughout the set of stops.

11. In a key-set tabulating mechanism as claimed in claim 10, a set of said column stops each of which consists of a single piece of sheet metal, is inherently resiliently expansible and contractible, is individually releasably self -held to the supporting means for separate attachment and detachment, and is individually automatically releasably self-latchable to said supporting means in both the set and unset positions of the stop.

12. In a key-set tabulating mechanism as claimed in claim 10, a universal unsetting means for the stops simultaneously operable upon all set stops to unset the same.

13. In a typewriting machine having a keyset tabulating mechanism for controlling tabulating movements of the platen carriage of the machine, the combination of a set of column stops, one stop for each letter space position of the carriage of the machine, means supporting said set' of stopsin' spaced apart groups of stops for edgewise shifting of any stop of the set independently of the others transversely of the path'of travel of the carriage to set and unset the selected stop, and a device for individually setting and unsettirig any selected one of the stops, each stop having two spaced edge portions respectively enga'geableby said individual setting andunsetting device in a letter space posi tion of the carriage peculiar to said stop to set and unset the stop, and each stop also having an abutment side face portion for coaction with a suitable counterstop' to arrest a tabulating movement of the carriage in a letter space positionlpeculiar to said stop," the said abutment side face po'rtions of the stops of said set having a uniform spacing in the direction of travel of the carriage equal to one letter space distance of travel of the'carriage.

'14; A typewriting or like machine having a platen carriage mounted for travel back and forth, and a key set tabulating mechanism comprising a set of individually settable and unsettable column stops, stop supporting means carrying the stops of said set of column stops with the stops ofsaid set arranged in spaced groups of two or more Vfacewisely abutting stops, and abutments carried by the supporting means at opposite sides of each group of facewisely abutting column stops to resist facewise movements offthe stops of the group relatively to said supporting means, each stop of'the set of column stops having a side face portion for coaction with-a counterstop means'to arrest tabulating jumps of the carriage, and said side face portions of the column stops'being spaced apart uni 16. In a tabulating mechanism for typewriting or like machines having a traveling platen carriage, the combination of a column stop bar having extending longitudinally thereof two parallel rows of slots on opposite faces thereof, each slot' extending transversely of the bar, and aset of column stops each of which is pivotally held for pivotal setting and unsetting movements thereof transversely of the bar independently of the others about an axis extending longitudinally of the bar, the number of slots of each row being less than the number of stops of said set of stops, the set of stops being arranged in groups with the stops of each group pivotally engaged in one slot of a pair of slots and slidably engaged in the coincident slot of said pair of slots on the opposite face of said bar, the side walls of each pair of slots restraining the group of stops engaged therein from movement longitudinally of the bar, and each stop having a portion for contact with a counterstop for arresting the platen carriage, the said contact portions of the stops of all the groups of stops having a uniform spacing along the stop bar.

OTTO E. GATHMANN. 

